<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator="/">
      <el-breadcrumb-item :to="{ path: '/Welcome' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card class="box-card">
      <!-- 搜索与添加区域 -->

      <el-row :gutter="20">
        <el-col :span="7">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 用户列表 -->
      <el-table :data="userList" border stripe>
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template v-slot="scope">
            <el-switch @change="userStateChangeed(scope.row)" v-model="scope.row.mg_state"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作">
          <template v-slot="scope">
            <el-tooltip :enterable="false" effect="dark" content="修改" placement="top">
              <el-button
                @click="showEditDialog(scope.row.id)"
                size="mini"
                type="primary"
                icon="el-icon-edit"
              ></el-button>
            </el-tooltip>
            <el-tooltip :enterable="false" effect="dark" content="删除" placement="top">
              <el-button
                @click="removeUserById(scope.row.id)"
                size="mini"
                type="danger"
                icon="el-icon-delete"
              ></el-button>
            </el-tooltip>
            <el-tooltip :enterable="false" effect="dark" content="分配角色" placement="top">
              <el-button
                @click="setRole(scope.row)"
                size="mini"
                type="warning"
                icon="el-icon-setting"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-size="queryInfo.pagesize"
        :page-sizes="[1,2,5,10]"
        layout="total , sizes , prev, pager , next , jumper"
        :total="total"
      ></el-pagination>
    </el-card>

    <!-- 添加用户 -->
    <el-dialog @close="addDialogClosed" title="添加用户" :visible.sync="addDialogVisible" width="50%">
      <!-- 内容主题区 -->
      <el-form :model="addForm" :rules="addFormrules" ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input type="password" v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户 -->
    <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
      <!-- 内容主题区 -->
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 分配角色 -->
    <el-dialog
      @close="setRoleDialogClosed"
      title="分配角色"
      :visible.sync="setRoleDialogVisible"
      width="50%"
    >
      <div>
        <p>当前用户：{{userInfo.username}}</p>
        <p>当前角色：{{userInfo.role_name}}</p>
        <p>
          分配新角色：
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option
              v-for="item in rolesList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id"
            ></el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfop">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>
<script>
export default {
  data() {
    // 验证邮箱
    var checkEmail = (rule, value, cb) => {
      // 验证邮箱正则
      const regEmail = /^\w+@\w+(\.\w+)+$/;
      if (regEmail.test(value)) {
        return cb();
      }
      cb(new Error("请输入合法邮箱"));
    };
    // 验证手机号
    var checkMobile = (rule, value, cb) => {
      // 验证手机号正则
      const regMobile = /^1[34578]\d{9}$/;
      if (regMobile.test(value)) {
        return cb();
      }
      cb(new Error("请输入正确的手机号"));
    };
    return {
      // 获取用户列表参数
      queryInfo: {
        query: "",
        // 当前页数
        pagenum: 1,
        pagesize: 2
      },
      userList: [],
      total: 0,
      // 控制对话框的显示隐藏
      addDialogVisible: false,
      // 添加用户的数据
      addForm: {
        username: "",
        password: "",
        email: "",
        mobile: ""
      },
      // 添加表单验证
      addFormrules: {
        username: [
          { required: true, message: "请输入用户名", trigger: "blur" },
          {
            min: 3,
            max: 10,
            message: "用户名长度为3-10位字符之间",
            trigger: "blur"
          }
        ],
        password: [
          { required: true, message: "请输入密码", trigger: "blur" },
          {
            min: 6,
            max: 15,
            message: "用户名长度为6-15位字符之间",
            trigger: "blur"
          }
        ],
        email: [
          { required: true, message: "请输入邮箱", trigger: "blur" },
          { validator: checkEmail, trigger: "blur" }
        ],
        mobile: [
          { required: true, message: "请输入手机号", trigger: "blur" },
          { validator: checkMobile, trigger: "blur" }
        ]
      },
      editDialogVisible: false,
      // 查询到的用户信息
      editForm: {},
      editFormRules: {
        email: [
          { required: true, message: "请输入邮箱", trigger: "blur" },
          { validator: checkEmail, trigger: "blur" }
        ],
        mobile: [
          { required: true, message: "请输入手机号", trigger: "blur" },
          { validator: checkMobile, trigger: "blur" }
        ]
      },
      // 控制分配角色显示隐藏
      setRoleDialogVisible: false,
      // 需要被分配角色的用户信息
      userInfo: {},
      // 所有角色数据列表
      rolesList: [],
      selectedRoleId: ""
    };
  },
  created() {
    this.getUserList();
  },
  methods: {
    // 获取用户列表
    async getUserList() {
      const { data: res } = await this.$http.get("users", {
        params: this.queryInfo
      });
      if (res.meta.status !== 200)
        return this.$message.error("获取用户列表失败");
      this.userList = res.data.users;
      this.total = res.data.total;
      console.log(res);
    },
    // 监听size改变的组件
    handleSizeChange(newSize) {
      console.log(newSize);
      this.queryInfo.pagesize = newSize;
      this.getUserList();
    },
    // 监听页码值改变的事件
    handleCurrentChange(newPage) {
      console.log(newPage);
      this.queryInfo.pagenum = newPage;
      this.getUserList();
    },
    // 监听switch开关状态的改变
    async userStateChangeed(userinfo) {
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      );
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state;
        return this.$message.error("更新用户状态失败");
      }
      this.$message.closeAll();
      this.$message.success("更新用户状态成功");
    },
    // 监听添加用户对话框
    addDialogClosed() {
      this.$refs.addFormRef.resetFields();
    },
    // 点击按钮，添加新用户
    addUser() {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return;
        // 通过，发起真正请求
        const { data: res } = await this.$http.post("users", this.addForm);
        if (res.meta.status !== 201) {
          this.$message.error("添加用户失败");
        }
        this.$message.success("添加用户成功");
        // 隐藏悬浮窗
        this.addDialogVisible = false;
        // 重新获取用户列表
        this.getUserList();
      });
    },
    // 展示修改页面
    async showEditDialog(id) {
      const { data: res } = await this.$http.get("users/" + id);
      if (res.meta.status !== 200) {
        return this.$message.error("获取用户数据失败");
      }
      this.editForm = res.data;
      this.editDialogVisible = true;
    },
    // 监听
    editDialogClosed() {
      this.$refs.editFormRef.resetFields();
    },
    // 修改用户数据提交
    editUserInfo() {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return;
        // 发起请求信息
        const { data: res } = await this.$http.put(
          "users/" + this.editForm.id,
          {
            email: this.editForm.email,
            mobile: this.editForm.mobile
          }
        );
        if (res.meta.status !== 200)
          return this.$message.error("更新用户信息失败");
        this.editDialogVisible = false;
        this.getUserList();
        this.$message.success("更新用户信息成功");
      });
    },
    // 删除用户
    async removeUserById(id) {
      // 弹框
      const confirmResult = await this.$confirm(
        "此操作将永久删除该用户，是否继续？",
        "提示",
        {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning"
        }
      ).catch(err => err);
      if (confirmResult !== "confirm") return this.$message.info("取消");
      const { data: res } = await this.$http.delete("users/" + id);
      if (res.meta.status !== 200) return this.$message.error("删除用户失败");
      this.$message.success("删除用户成功");
      this.getUserList();
    },
    // 展示分配角色对话框
    async setRole(userInfo) {
      this.userInfo = userInfo;

      // 在展示对话框前获取所有角色列表
      const { data: res } = await this.$http.get("roles");
      if (res.meta.status !== 200)
        return this.$message.error("获取角色列表失败");
      this.rolesList = res.data;
      this.setRoleDialogVisible = true;
    },
    // 保存分配角色
    async saveRoleInfop() {
      if (!this.selectedRoleId)
        return this.$message.error("请选择要分配的角色");
      const { data: res } = await this.$http.put(
        `users/${this.userInfo.id}/role`,
        {
          rid: this.selectedRoleId
        }
      );
      if (res.meta.status !== 200)
        return this.$message.error("设置角色列表失败");
      this.$message.success("设置角色列表成功");
      this.setRoleDialogVisible = false;
    },
    // 监听分配角色对话框关闭
    setRoleDialogClosed() {
      this.selectedRoleId = "";
      this.userInfo = {};
    }
  }
};
</script>
<style lang="less" scoped>
</style>